public static Guid ReadGuid(BinaryReader reader)
{
var buf = new DriverRowData.ValueHolder16Bytes {Lo = reader.ReadInt64(), Hi = reader.ReadInt64()};
return buf.AsGuid;
}
private object ReadCollection(DbType dbType, BinaryReader reader, StringBuilder stringBuilder)
{
var itemCount = RowData.Read7BitEncodedInt(reader);
switch (dbType)
{
//case DbType.VarNumeric:
// break;
case DbType.AnsiString:
case DbType.String:
case DbType.AnsiStringFixedLength:
case DbType.StringFixedLength:
case DbType.Xml:
{
var result = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
for (var x = 0; x < itemCount; x++)
{
var len = RowData.Read7BitEncodedInt(reader);
if (len > 0)
{
stringBuilder.Clear();
stringBuilder.EnsureCapacity(len);
for (var i = 0; i < len; i++)
{
stringBuilder.Append((char) RowData.Read7BitEncodedInt(reader));
}
result.Add(stringBuilder.ToString());
}
else if (len >= -1)
{
// client supplies -1 to indicate that collection element is null
// ignore ReSharper's warning about notnull, no exception here
// ReSharper disable AssignNullToNotNullAttribute
result.Add(len == 0 ? string.Empty : null);
// ReSharper restore AssignNullToNotNullAttribute
}
else
{
throw new Exception("Invalid length value: " + len);
}
}
return result;
}
case DbType.Binary:
case DbType.Object:
{
var result = new HashSet<SizableArrayOfByte>(SizableArrayOfByte.DefaultComparer.Instance);
for (var x = 0; x < itemCount; x++)
{
var len = RowData.Read7BitEncodedInt(reader);
if (len >= 0)
{
var data = new SizableArrayOfByte();
data.SetLength(len);
var bytesRead = 0;
while (bytesRead < data.Length)
{
var count = reader.Read(data.Data, bytesRead, data.Length - bytesRead);
if (count == 0)
{
throw new DataException("Unexpected end of stream");
}
bytesRead += count;
}
result.Add(data);
}
else if (len == -1)
{
// client supplies -1 to indicate that collection element is null
// ignore ReSharper's warning about notnull, no exception here
// ReSharper disable AssignNullToNotNullAttribute
result.Add(null);
// ReSharper restore AssignNullToNotNullAttribute
}
else
{
throw new Exception("Invalid length value: " + len);
}
}
return result;
}
case DbType.SByte:
{
var result = new HashSet<SByte>();
for (var x = 0; x < itemCount; x++)
{
result.Add((sbyte)reader.ReadByte());
}
return result;
}
case DbType.Byte:
{
var result = new HashSet<Byte>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadByte());
}
return result;
}
case DbType.Boolean:
{
var result = new HashSet<bool>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadBoolean());
}
return result;
}
case DbType.Decimal:
case DbType.Currency:
{
var result = new HashSet<Decimal>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadDecimal());
}
return result;
}
case DbType.Guid:
{
var result = new HashSet<Guid>();
for (var x = 0; x < itemCount; x++)
{
var buf = new DriverRowData.ValueHolder16Bytes { Lo = reader.ReadInt64(), Hi = reader.ReadInt64() };
result.Add(buf.AsGuid);
}
return result;
}
case DbType.DateTimeOffset:
{
var result = new HashSet<DateTimeOffset>();
for (var x = 0; x < itemCount; x++)
{
var buf = new DriverRowData.ValueHolder16Bytes {Lo = reader.ReadInt64(), Hi = reader.ReadInt64()};
result.Add(buf.AsDateTimeOffset);
}
return result;
}
case DbType.Int16:
{
var result = new HashSet<Int16>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadInt16());
}
return result;
}
case DbType.UInt16:
{
var result = new HashSet<UInt16>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadUInt16());
}
return result;
}
case DbType.Int32:
{
var result = new HashSet<Int32>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadInt32());
}
return result;
}
case DbType.UInt32:
{
var result = new HashSet<UInt32>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadUInt32());
}
return result;
}
case DbType.Single:
{
var result = new HashSet<Single>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadSingle());
}
return result;
}
case DbType.Date:
case DbType.DateTime:
case DbType.DateTime2:
{
var result = new HashSet<DateTime>();
for (var x = 0; x < itemCount; x++)
{
result.Add(DateTime.FromBinary(reader.ReadInt64()));
}
return result;
}
case DbType.Time:
{
var result = new HashSet<TimeSpan>();
for (var x = 0; x < itemCount; x++)
{
result.Add(new TimeSpan(reader.ReadInt64()));
}
return result;
}
case DbType.Int64:
{
var result = new HashSet<Int64>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadInt64());
}
return result;
}
case DbType.UInt64:
{
var result = new HashSet<UInt64>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadUInt64());
}
return result;
}
case DbType.Double:
{
var result = new HashSet<Double>();
for (var x = 0; x < itemCount; x++)
{
result.Add(reader.ReadDouble());
}
return result;
}
default:
throw new DataException("Invalid DbType: " + dbType);
}
}
